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10241681 = 73140297
BaseRepresentation
bin100111000100…
…011010010001
3201021022221112
4213010122101
510110213211
61003303105
7153024062
oct47043221
921238845
1010241681
1158657aa
12351aa95
132177888
141508569
15d7488b
hex9c4691

10241681 has 4 divisors (see below), whose sum is σ = 10382052. Its totient is φ = 10101312.

The previous prime is 10241663. The next prime is 10241683. The reversal of 10241681 is 18614201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 4558225 = 2384^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 10241681 - 218 = 9979537 is a prime.

It is a super-2 number, since 2×102416812 = 209784059411522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10241683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70076 + ... + 70221.

It is an arithmetic number, because the mean of its divisors is an integer number (2595513).

Almost surely, 210241681 is an apocalyptic number.

It is an amenable number.

10241681 is a deficient number, since it is larger than the sum of its proper divisors (140371).

10241681 is an equidigital number, since it uses as much as digits as its factorization.

10241681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140370.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 10241681 is about 3200.2626454715. The cubic root of 10241681 is about 217.1652913233.

Adding to 10241681 its reverse (18614201), we get a palindrome (28855882).

It can be divided in two parts, 1024 and 1681, that multiplied together give a square (1721344 = 13122).

The spelling of 10241681 in words is "ten million, two hundred forty-one thousand, six hundred eighty-one".

Divisors: 1 73 140297 10241681